Mathematics Grade 1
Strand: OPERATIONS AND ALGEBRAIC THINKING (1.OA)
Represent and solve problems involving addition and subtraction within 20 (Standards 1-2, 5-6). Understand and apply properties of operations and the relationship between addition and subtraction (Standards 3-4). Work with addition and subtraction equations (Standards 7-8).Standard 1.OA.6
Add and subtract within 20.
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